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What to check before you leave, how to troubleshoot after you land, and the things worth knowing before you buy. Every piece aims to give you steps you can actually follow.
An eSIM is a profile you download, not a plastic card. What changes: how you get it, whether your own number keeps working, and why it's locked to one device.
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Two things must be true before you buy an eSIM: the device supports it, and it isn't carrier-locked. Both take thirty seconds to check on iPhone and Android.
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Installing an eSIM needs a connection — and landing is when you have none. Why install and activate are separate steps, and how to scan the code with one phone.
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Land with no connection? The cause is almost always three settings, not a broken plan. Work through this order — each step explains what it rules out.
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